TSB 09-01-37-001 (Noisy heater core) - Page 9 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

DoubleARS · 02-13-2012, 06:38 AM

A whole lotta thread rez lately.

I installed a new intake yesterday. I went for a ride and kept everything off so I could listen for problems. I heard a similar sound described here. Does this problem exist on 2011's as well?

bowtie_beauties · 06-13-2012, 12:46 PM

Mine is a 2011 and seems to have the "rice crispies" problem especially. It's been at the dealer for 2.5 days now as they're trying to figure it out. The most recent update is that they are installing a 1-way valve. Maybe they saw this thread. Either way, I hope it's fixed....

SuperH · 06-15-2012, 08:05 AM

For those of you with the manual transmission, does this seem to happen worse in some gears than others as well - independent of engine RPMs? I have heard rice krispies coming off of the lot - and thought I was nuts.

In my head, I was conjuring the worst - that it was a bunch of metal slushing around the transmission. But then I thought... you'd never hear that because the fluid would dampen it. This is a distinct pinging of something which sounds like water splashing.

I am so glad that I stumbled on this thread. Thanks everyone!

Karl · 04-06-2013, 06:08 AM

Hi !

I have a 2012 L99 and i seem to have the same noise.

Now i was looking under the hood and tried to find the place where the one-way valve should be installed.

But at my L99 the complete water pipes are arranged in another way.

Is this normal at a 2012 Camaro?

Does anyone else have the problem with his 2012 Camaro?

Thanks.

best regards

Karl

zenben · 09-22-2015, 10:53 AM

Is this problem still in existence with 2015 models? I have a V6...and have this exact issue based on the descriptions.

Mario Maldonado · 12-03-2015, 02:06 PM

Quote:

Originally Posted by zenben

Is this problem still in existence with 2015 models? I have a V6...and have this exact issue based on the descriptions.

Did u get it done ? I have a similar issue i hear it only after i turn it off not a gurgling sound tho more like a hvac or so kinda noise

Gotit4cheap16 · 12-06-2017, 03:17 PM

bump i have this problem too

MjrStfy · 01-09-2018, 02:32 PM

Took my 2015 automatic V6 into the dealer today to have this issue fixed been driving me nuts for the past few weeks hearing the noise it’s been happening more and I can reproduce it driving the car in 2nd gear at 25-30 mph. Happens hot or cold.

MjrStfy · 01-11-2018, 04:40 PM

Got my car back today and boy was the filter clogged !!!! Surprised my car didn’t overheat or had other issues. The drive home the noise was gone

see what happens over the next few days.

Edited added picture

MjrStfy · 01-12-2018, 04:51 PM

After yesterday been doing some thinking about what the gunk that’s on the filter and I’m concerned about what that stuff is if the filter is that plugged up and it can’t be removed by just rinsing it off that it has to be plastic that melted to it ?? What’s in the cooling heating system that can melt and what did it melt from ? Will I have other issues from what ever melted ?

Could just be me but last night I didn’t hear the ticking noise that every one says is normal for the Camaro.

RJT Impala · 01-21-2018, 10:59 PM

Quote:

Originally Posted by MjrStfy

Got my car back today and boy was the filter clogged !!!! Surprised my car didn’t overheat or had other issues. The drive home the noise was gone

see what happens over the next few days.

Edited added picture

What filter is that? I don't recall ever seeing that before.

John_C · 01-28-2018, 08:31 AM

Quote:

Originally Posted by RJT Impala

What filter is that? I don't recall ever seeing that before.

What he said^

xc_SS/RS · 01-29-2018, 08:22 AM

I think That’s a V6 only item but I could be wrong. I no longer have the gurgling sound from the heater core after installing the updated heater hoses on my SS

bmcquill · 09-25-2024, 10:50 PM

2014 V6, had the hissing noise coming from behind passenger-side dash when on the gas over 3K RPM. I asked a shop to do this service bulletin and they found plastic buildup on the filter. They cleaned it and back flushed the system, noise is gone! I am also concerned about what caused the buildup on the filter/where the buildup came from. I have been tracking the car more frequently this season and am concerned something may have melted. Unsure if it's coming from the radiator but I plan to install an aluminum one this spring regardless.

06-15-2012, 08:05 AM	#115
SuperH Synergized Drives: 2011 SGM M6 2SS/RS Join Date: Oct 2010 Location: Irvine, CA Posts: 299 View My Garage	For those of you with the manual transmission, does this seem to happen worse in some gears than others as well - independent of engine RPMs? I have heard rice krispies coming off of the lot - and thought I was nuts. In my head, I was conjuring the worst - that it was a bunch of metal slushing around the transmission. But then I thought... you'd never hear that because the fluid would dampen it. This is a distinct pinging of something which sounds like water splashing. I am so glad that I stumbled on this thread. Thanks everyone! __________________

01-11-2018, 04:40 PM	#121
MjrStfy Drives: 2015 Chevy Camaro V6 2LT RS Join Date: Jul 2015 Location: SoCal Posts: 113 View My Garage	Got my car back today and boy was the filter clogged !!!! Surprised my car didn’t overheat or had other issues. The drive home the noise was gone see what happens over the next few days. Edited added picture Attached Images Last edited by MjrStfy; 01-11-2018 at 04:50 PM.

01-29-2018, 08:22 AM	#125
xc_SS/RS Drives: 2010 Camaro SS/RS Join Date: Mar 2014 Location: somewhere in MD Posts: 4,883	I think That’s a V6 only item but I could be wrong. I no longer have the gurgling sound from the heater core after installing the updated heater hoses on my SS __________________ 2010 2SS/RS Z/28 intake, NW, FAST 102, speed engineering LT's, some exhaust, ATI -10% pulley, GM flex fuel injectors, DSX flex fuel sensor, MGW shifter, HP Tuners, some suspension work, stickers and a little weight loss. 12.63 @113.53

09-25-2024, 10:50 PM	#126
bmcquill Drives: 2014 1LS Join Date: May 2015 Location: Illinois Posts: 46	2014 V6, had the hissing noise coming from behind passenger-side dash when on the gas over 3K RPM. I asked a shop to do this service bulletin and they found plastic buildup on the filter. They cleaned it and back flushed the system, noise is gone! I am also concerned about what caused the buildup on the filter/where the buildup came from. I have been tracking the car more frequently this season and am concerned something may have melted. Unsure if it's coming from the radiator but I plan to install an aluminum one this spring regardless. __________________ ZL1 front & Hotchkis rear sways, Z28 upper control arm bushings, toe links & trailing arms, DSS aluminum subframe bushings, SS Brembos & master cylinder, DSX flex fuel kit, Apex wheels, Elite catch can & clean side separator, K&N Typhoon CAI, MGW short throw

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02-13-2012, 06:38 AM	#113
DoubleARS Drives: 2010 Dodge Challenger Join Date: Apr 2011 Location: Arkansas Posts: 124 View My Garage	A whole lotta thread rez lately. I installed a new intake yesterday. I went for a ride and kept everything off so I could listen for problems. I heard a similar sound described here. Does this problem exist on 2011's as well?

06-13-2012, 12:46 PM	#114
bowtie_beauties Drives: White SS & Green LT Join Date: Sep 2010 Location: Chicago Area Posts: 45	Mine is a 2011 and seems to have the "rice crispies" problem especially. It's been at the dealer for 2.5 days now as they're trying to figure it out. The most recent update is that they are installing a 1-way valve. Maybe they saw this thread. Either way, I hope it's fixed....

04-06-2013, 06:08 AM	#116
Karl Drives: Camaro L99 european model Join Date: Apr 2013 Location: Germany Posts: 2	Hi ! I have a 2012 L99 and i seem to have the same noise. Now i was looking under the hood and tried to find the place where the one-way valve should be installed. But at my L99 the complete water pipes are arranged in another way. Is this normal at a 2012 Camaro? Does anyone else have the problem with his 2012 Camaro? Thanks. best regards Karl

09-22-2015, 10:53 AM	#117
zenben Drives: 2015 2LT Join Date: Aug 2014 Location: New York Posts: 71	Is this problem still in existence with 2015 models? I have a V6...and have this exact issue based on the descriptions.

12-06-2017, 03:17 PM	#119
Gotit4cheap16 Drives: Victory Red Join Date: Jul 2017 Location: MD Posts: 175	bump i have this problem too

01-09-2018, 02:32 PM	#120
MjrStfy Drives: 2015 Chevy Camaro V6 2LT RS Join Date: Jul 2015 Location: SoCal Posts: 113 View My Garage	Took my 2015 automatic V6 into the dealer today to have this issue fixed been driving me nuts for the past few weeks hearing the noise it’s been happening more and I can reproduce it driving the car in 2nd gear at 25-30 mph. Happens hot or cold.

01-12-2018, 04:51 PM	#122
MjrStfy Drives: 2015 Chevy Camaro V6 2LT RS Join Date: Jul 2015 Location: SoCal Posts: 113 View My Garage	After yesterday been doing some thinking about what the gunk that’s on the filter and I’m concerned about what that stuff is if the filter is that plugged up and it can’t be removed by just rinsing it off that it has to be plastic that melted to it ?? What’s in the cooling heating system that can melt and what did it melt from ? Will I have other issues from what ever melted ? Could just be me but last night I didn’t hear the ticking noise that every one says is normal for the Camaro.